Linker Map Auditor

Paste the .map your linker already wrote. Get the exact bytes: which region overflowed, and which object file spent them. Runs entirely in this tab - the file never leaves your machine.

Your map file

Example build

Top spenders

Or paste your own map file (generated with -Wl,-Map=build/app.map)

Works with any GNU ld map: arm-none-eabi, riscv, avr, msp430, and the map files written by STM32CubeIDE, MCUXpresso and PlatformIO.